Finding the Third Proportional to 556,312 and 1,201,320

Step by Step Solution

1. Step 1: Write the proportion equation
   556,312 : 1,201,320 = 1,201,320 : x
2. Step 2: Convert to fraction form
   556,312/1,201,320 = 1,201,320/x
3. Step 3: Cross multiply
   556,312x = 1,201,320 × 1,201,320
4. Step 4: Simplify right side
   556,312x = 1,443,169,742,400
5. Step 5: Solve for x
   x = 1,443,169,742,400/556,312
6. Step 6: Final answer
   x = 2,594,173.31